Scanning Probe Microscopy

Scanning Probe Microscopy

The research group scanning probe microscopy (SPM) has been established with a focus on high-resolution local structure measurements on model systems for heterogeneous catalysis. Well defined crystalline and amorphous thin oxide film systems have been developed and characterized by atomic resolution scanning probe microscopy and spectroscopy to gain insight into local structural environments for chemical reactions taking place at these surfaces.

Electrocatalytic reactions, such as water oxidation and carbon dioxide reduction, that are being pursued by the Department of Interface Science could be significantly affected by the use of these films on the surface of the catalyst. Stabilization of the catalyst from degradation and erosion is an ongoing area of interest. Furthermore, modification of metal single crystal electrodes with a two-dimensional barrier layer is proposed as a model system to address structural and chemical alterations that could occur during electrochemical reactions that might lead to changes in their activity and selectivity. Chemical and structural effects created by two-dimensional overlayers is a hot topics in this research direction.

Group Members

Recent Publications

J.J. Navarro, M. Das, S. Tosoni, F. Landwehr, M. Heyde, G. Pacchioni, F. Glorius and B. Roldan Cuenya: Promoted Thermal Reduction of Copper Oxide Surfaces by N-Heterocyclic Carbenes. The Journal of Physical Chemistry C 126 (41), 17528–17535 (2022).
J.J. Navarro, M. Das, S. Tosoni, F. Landwehr, J.P. Bruce, M. Heyde, G. Pacchioni, F. Glorius and B. Roldan Cuenya: Covalent Adsorption of N-Heterocyclic Carbenes on a Copper Oxide Surface. Journal of the American Chemical Society 144 (36), 16267–16271 (2022).
J.J. Navarro, M. Das , S. Tosoni, F. Landwehr, M. Koy, M. Heyde, G. Pacchioni, F. Glorius and B. Roldan Cuenya: Growth of N-Heterocyclic Carbene Assemblies on Cu(100) and Cu(111): from Single Molecules to Magic-Number Islands. Angewandte Chemie International Edition 61 (30), e202202127 (2022).
F. Scholten, K.-L.C. Nguyen, J.P. Bruce, M. Heyde and B. Roldan Cuenya: Identifying structure-selectivity correlations in the electrochemical reduction of CO2: a comparison of well-ordered atomically-clean and chemically-etched Cu single crystal surfaces. Angewandte Chemie International Edition 60 (35), 19169–19175 (2021).
J.P. Bruce, K.-L.C. Nguyen, F. Scholten, R. Aran Ais, J.J. Navarro, J. Hartmann, M. Heyde and B. Roldan Cuenya: Development of a single crystal sample holder for interfacing ultrahigh vacuum and electrochemical experimentation. Review of Scientific Instruments 92 (7), 074104 (2021).
J.J. Navarro, S. Tosoni, J.P. Bruce, L. Chaves, M. Heyde, G. Pacchioni and B. Roldan Cuenya: The Structure of a Silica Thin Film on Oxidized Cu(111): Conservation of Honeycomb Lattice and Role of the Interlayer. The Journal of Physical Chemistry C 124 (38), 20942–20949 (2020).
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